[Updated at 11:18 p.m. ET] Aimee Seaver, the mother of a first-grade girl at Sandy Hook and a fifth-grader who attends a different school, told CNN's Anderson Cooper that her children are having trouble dealing with what happened.

"It's a very rough night here," she said. "When your first-grader goes to bed and says, 'Mommy, is anyone from my class last year - are they all OK?' and you look at them and say, 'I'm not really sure,' it's a rough night to tell that to your 7-year-old."

Her younger daughter has asked a lot of questions about Principal Dawn Lafferty Hochsprung, who was killed.

The German parliament approved Friday the deployment of German Patriot anti-aircraft missiles to Turkey, with 461 Bundestag deputies voting in favor of the deployment, 86 against and eight abstentions.

The decision followed an earlier announcement that the United States intends to deploy 400 troops and two Patriot air-defense missile batteries to Turkey in the coming weeks to defend against potential threats from Syria.

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